Build your own solar-powered water pumping station

Build your own solar-powered water pumping station by Jeffrey Yago:

"There are many remote applications where a solar-powered water pump is more cost effective than installing a conventional grid-connected AC pump."

ThinkGeek :: Kill-A-Watt

ThinkGeek :: Kill-A-Watt:

"The Kill-A-Watt allows you to connect your appliances and assess how efficient they are. A large LCD display counts consumption by the Kilowatt-hour, just like utility companies. You can figure out your electrical expenses by the hour, day, week, month, even an entire year. Monitor the quality of your power by displaying Voltage, Line Frequency, and Power Factor."

LessWatts.org - Saving Power on Intel systems with Linux

LessWatts.org - Saving Power on Intel systems with Linux:

"PowerTOP combines various sources of information from the kernel into one convenient screen so that you can see how well your system is doing at saving power, and which components are the biggest problems."